Bed-motion for sheet-printing presses



/ B. F. UPHAIVI AND F. R. BELLUCHE.

BED MOTION FOR SHEET PRINTING PRESSES.

APPLICATION FILED MAR. I7, 1920- Patented Nov. 29, 1921;

4 SHEETS-SHEET I.

B. F. UPHAM AND F. R. BELLUCHE.

BED MOTION FOR SHEET PRINTING PRESSES.

APPLICATION FILED MAR. I?

APPLICATION FILED MAR. 17, 1920.

Patented. Nov. 29, 1921.

4 SHEETSSHEET 3.

B. F. UPHAM AND F. R. BELLUCH E. BE MOTION FOR SHEET PRINTING PBESSES.

APPLICATION FILED MAR. 17, I920- Patented'Nov 29; 192L- 4 SHEETSSHEET 4-L n wanted States, said UPHAM residing at Brookline, in

- chusetts, and said BELL'UOHE residin BURT F. UIPHAM, OF BROOKLIN'E,AND FRANK R. BELLUCHE, OF MANSFIELD, MASSA- CHUSETTS, ASSIGNORS TOUNITEDPRINTING MACHINERY COMPANY, OF BOSTON, MASSACHUSETTS, CORPORATIONOF MASSACHUSETTS.

BED-MOTION FOR SHEET-PRINTING PRESSES.

Specification of Letters Patent.

Application filed March 17, 1920. Serial No. 366,592.

To all whom it may ooneem: v

Be it known that we, BURT F. UPHAM and FRANK R, BELLUGHE, citizens ofthelUnited the county of Norfolk and State of Massaat Mansfield, in thecounty of Bristol and tate of Massachusetts, have invented certain newand useful Improvements in Bed-Motions for Sheet-Printin Presses, and wehereby declare that the to lowing is a full, clear, and exactdescription thereof, reference being had to the accompanylng drawings,which form part of this specification.

, This invention is a novel means for imparting reciprooatory movementsto objects; such, for example, as the beds of printing presses, where itis desired to move the object at a uniform speed durlng one.portion ofeach stroke and to reverse the movement of I the object gradually at theend of such uni- .form movement.

The invention in particular is an improvement upon the movement shown inBurt F.

Uphams Patent No. 1,094,405 of April 21, 1914; and the objects of thepresent invention are, to provide novel means for driving the bed on theuniform portions of its strokes; to provide novel means for reversingthe'bed at the end of the uniform portions of its strokes; to soconstruct the reversing mechanism that the reverse stresses will beexerted on the bed at'approximately its center; to make the reversingmechanism compact, durable, andeasily accessible; to

. simplify and improve the construction of the reversing mechanism shownin said p'atent;

and to dispense with the swingable parts or gates in the reversingmechanism.

In this invention as in said patent the mechanism is so constructed thatduring the reversals, the forces acting on the-reciprO catingbedand-tending to stop and start the same in the opposite d rection will beexerted in a downward direction on the bed and parallel thereto, andthus tend to keep it at all times in close contact with the bedsupports, and prevent any tendency to throw the bed upwardly away fromthefsupports during the reversing operation.

We willexplain the invent on with reference to the accompanying drawingswhich Patented Nov. 29, 1921.

illustrateone practical embodiment thereof,

adapted for reciprocating the'bed ofa print- 1ng.press, or like machineto enable others skilled in the art to. understand and use theinvention; but the invention is not restricted to the particularconstruction and ap lication of the invention shown in said ings, andall changes, variations and modifications are intended to be included asfall within the scope of the claims appended hereto.

In said drawings: 1

Figure 1 is a longitudinal sectional elevation-on line 1-1 of Fi 3 ofpart of a printing press showing tl ie' means for driv- 1Il% andreversing the bed.

ig. 2 is a similar view looking from the opposite side on line 2-2 ofFig. 3.

Fig. 3 is a right hand elevation of Fig. 1.

Fig. 4 is a transverse vertical section on line 4-4, of Fig. l. 1

Fig. 5 is a detail edge view of one of the bearing portions 1, whichrest upon "the raw-- usual bedrollers or sliders 2. The portions I 1"may be prolonged at'each end of thebed by means of extensions 1 formedintegral with the bed as shown. The sliders 2 are shown as supported onthe usual guides 2 rigidly mounted in the press frames as usual. The,bed is prevented from lateral play on the sliders 2 by means of gihs 1attached to the under side of the bed and engaging opposite sides of theguides 2, as shown in, Fig. 3.

The bed 1 is further preferabl formed withan integral longitudinally,epending portion '1", intermediate with the bearers 1 and, in tlieexampleshown', at one side of the'center of the bed. The inner ortion orface l-f of this part1" is prefefrab y perpen- 1 an view of the reversavertical the-central line of the-bed.

dicular to the top surface of the bed and in plane approximatelyparallel with In the opposite ends of the part 1 are formed aircylinders 1 (see Fig. 1) which are adapted to engage pistons (not shown)at opposite ends of the bed, for the purpose of air cushioning thereversal movements of the bed in the usual manner. Y

A bracket casting 3 (see Fig. 6) is. attached to the inner face 1 of theportion 1, said casting being approximately triangular I in form andarranged with its apex uppermost, and preferably at the transversecenter line of the bed. The sides of this casting are oppositelyinclined at angles of less than" ninety degrees (preferably 45 degreeseach) to the surface of the bed. To the opposite inclined surfaces ofthis casting 3 are respectively securely attached removable shoes 3*, 3,hereinafter referred to.

i to the face 1 of A guide casting 4 is bolted to the facel of the part1 and lies exterior to but substantially parallel with the shoe Won thecasting 3. c The side of casting i 'opposite the shoe 3 this concavedportion is adapted to be contacted by a guard roller 15 during theperiod of reverse, as hereinafter explained. The casting .1: is alsoprovided near its upper end with a short straight portion 4, towhich maybe attached a short straight shoe 4, which lies exactly parallel withand opposite to the upper portion of the shoe 3 (see Fig. 2) and thereverse roller 5 (hereinafter referredto) traverses the slot between theopposed shoes 3*, 4? during the actual reversal of the bed when at theouter or feed-board end of the press.

A guide casting 4', in all respects similar to but the reverse ofcasting f, is secured part 1 directly opposite the'shoe 3? on' thecasting 3; this casting 4" has a curved face 4 similar to the curvedface 4 of casting 4 and adapted to be engaged with a uide roller 15(hereinafter referred to during the reversal of. the bed at the innerend of its stroke. Castlng 4" has a straight upper portion i" to whichis secured a shoe 4, (corresponding to the shoe 4) which is directlyopposite and parallel with the upper end of the shoe .gear'6), when thebed is slightly concaved as at a and 9 bed carries a uouslyin mesh witha pinion 1Orotatab1y '120 formed between the'opposed shoes 3?, a isadapted to be engaged by a roller 5 mounted upon a crank pin 6 attachedto a gear 6 (hereinafter referred to) when the bed is moving outward andat the end of the uniform portion of its stroke. The slot formed betweenthe opposed shoes 3 4 is adapted to be engaged by a roller 5 (mounted ona gear 7 corresponding to the is moving inward and at the end of theuniform part of its stroke. Two bed driving gears 8 and9 are arrangedbetween the gears 6 and 7 (see Figs. 1, 2 and 8.) The gears 6, 7 8, and9 are of the same size; gears 8 and 9 intermesh; gear 9 meshes with anddrives gear 6; and gear 8 meshes with and drives gear 7; the gears 8 and9 rotate in epposite directions, ass-d0 the gears 6 and 7. All thesegears are journaled or supported in the 3; main frame in any suitableway. The gear 9may be mounted on a driven shaft 9 suitably journaledinthe frame and said shaft is preferably so geared to the cylinder shaft(by any suitable gears, .not shown) that gear will (in the constructionshown) make, say two revolutions to each revolution of the impressioncylinder C, and consequently each of the gears 6,7, and 8 makes a likenumber of revolutions, to each revolution of 95 the cylinder.

I In the construction shown the bed is driven uniformly during one-halfa revolution of gear 9 (or 8) and at the end of such uniform movementand during the next half revolu- 100 .t1on of the gear 9 (or 8) the bedis reversed so that in the movement the time required for uniformmovementof the bed and the 7 time required for reversal of the bed areequal; and the total length of stroke of-the bed during the uniformportion of its inward stroke and the bed isreversed at a time whenneither gear. 8 or 9 is in control of the bed.

To enable the gears Sand 9 to rotate on fixed axes and at the same timedrive the bed, 1 15 we preferably Eprovide shiftable intermediate gearor gears;

etween the gears 8 and 9 and the bed rack.

In the construction shown the single rack 11,which iscontinmounted on astub shaft 10* 10; and on this stub-shaft connected with carried by ayoke 10 and rigidly gear 10 is a slightly smaller gear 10 which latteris caused to alternately mesh with se ments Wand of ears 9 an 8. s shownthe yoke 10 is fulcrume'd on a 8 on the sides pm or stud '10? suitablymounted in the frame adjacent the gearsS and 9, said yoke In theconstruction shown the slot being curved so that it can clearthe se,,-

.mental gears 9 8". The yoke has a dependthe segment 9 (or 8") and intoposition to be en aged with the other segment 8 (or 9). he yoke iscaused to shift the pinion 10 during the reversals of the bed and whileit is clear .of both segments 8", and 9 During each reversal of the bedthe pinions 10, 10, will be slowed down, stopped, and reversed inrotation by reason of the constant engagement of the bed rack 11 withpinion 10; and as the bed is slowed down, stopped, reversed:- andbrought up to full speed in the opposite direction, the pinions 10, 10are also slowed down, stopped, reversed, and brought up to fullperipheral speed equal to the speed of movement of the segments 9*, 8*,so that the pinion 10* will mesh with the segment 8 (or 9") without anyclashing just before and as the' roller 5 (or 5) surrenders control ofthe bedat the end of the reversalmo'vement; and-thereafter the bed ispositively driven on its uniform stroke by: the motion positivelyimparted thereto by the gear 8 (or 9) through the segment 8 (or 9 andthe pinions 10, 10 and rack 11.

By referring to Fig. 2 it will be seen that the segments .9", 8",correspond in radius and size with the gears 8 and 9, and their teethare uniform with the teeth ofthe gears and thesesegments maybe attachedto or formed with said gears- As shown each of the segments 8", 9 ispractically 180 degrees in extent and they are so set on theirrespective gears 8 and 9 so that the leading edges of these segmentswill simultaneously reach the points for engagement with the pinion 10";or for disengagement therefrom, at the same time.

portion ofits stroke,(imparted thereto by segment 9 meshing with pinion10 and the segment 9 isjust passing out of mesh with the pinion 10"; atthe same moment the roller 5 isfljust entering the slot between theopposed shoes 3, 4 (seewFig. 6), and

The reversing roller 5 is shdwn as rotat-Q will take control of thebedand continue to move the same to the right (after segment 9 leavesgear 10*) while ear 6 makes one-' fourth of a revolution, uring thistime the roller 5 in conjunction with the slot (and particularly shoe 3)gradually slows down the bed to a full stop, then owing to the continuedorbital movement of the roller 5 by the gear 6, said roller operating onshoe 3, first starts the bed rack in the reverse direction and graduallyaccelerates the movement of the bed up to full speed by the time thegear 6 has completed a half revolution.

During the reversal movement when the bed is operating at speed thepressure contact is exe'rteglbetween' the roller 5 and the shoe 3 andthe pressure is exerted with a downward component on the shoe, and whilethe roller 5 is in engagement with the shoe 3 the forces tending to stopor start the bed will pull the bed downward and prevent the tendency ofthe bed to throw upward at the end of its stroke, or during the reverse,when the machine is in normal operation' The forces tending to stop andstart the bed are exerted in directions substantially at forty-fivedegrees to the bed.

During such reversal of the bed the pinion 10 is out of mesh with bothsegments 9", and 8", but is under control of the bed rack 11, whichremains in mesh with the pinion 10, and therefore said pinions 1()-10are slowed down, stopped, and reversed in rotation in, accordance withthe slowing down and stoppage and reversal of the movement of .the bed;and said pinions are brought up to fully rotary speed (equal to theperipheral speed of the gears 8 and 9 laterally, or edgewise, from theposition in,

which the pinion'lO" would mesh with the 11% segment 9; intosuchpositionjthat said pinion will be meshed with the segmentv 8 In theinterval between. the moment when segment 9 runs out of mesh with pinion10 and thennoment when the segment 8 comes .into mesh with the pinion 10the rotation of the pinion 10 is reversed (as stated) and when thesegmentS meshes with pinion 10 to drive the same, roller 5 leaves theshoe- 3' and the bed is driven on its backward stroke by the segment 8meshing with the v -pinion 1O and-pinion 10 meshing with the I Fig, 1the bed is moving to the right and has just completed the uniform bed,rack 11. v

Just beforethe'end of the uniform portion of the inward stroke of thebed (that is,

just before-the segment 8 runs out. of mesh,

with the pinion 10*) the roller 5 -enterslthe f slot between the opposedshoes 3 al and;

takes control'of the bed and reverses the '1 same during th t pinion sis out roller 5 reversal thereof as mesh with both segments 8*, 9; thisreversal the direction of rotation of'pinion 10 is reversed,'so that bythe time the has reversed the bed and is ready to surrender controlthereof the cam 12 has rocked the yoke 10 to shift pinions 10, 10 intoposition to enable segment 9 to again engage pinion. 10 forward strokeat uniform speed.

7 As stated the reverse roller 5 engages the related above explained. Toobviate the possibility of the bed moving improperly and during thisreversal movement after the roller 5, (or 5") has cleared the short'shoe 4* (or 4 mental guard rollers 15, 15", mounted on the gears 6 androllers 5, 5"; mounted on. a stud '15 (Fig. 2) attached to the gear '6beside the stud 6*,froller- 15 lying close beside and partiallyoverlapping the roller 5, and between the opposed faces, of the gear 6and roller 5. The guide roller 15 is similarly mounted on a studattached to the gear 7 beside the roller 5". 1

Just after-the roller 5 clearsthe shoe 4. after reversing the bed andwhile the roller 5 is operating on the lower part of shoe 7 beside the 3to accelerate the reverse movement-of the bed, the guard roller 15lightly engages or follows the curved guide 4 15* and guide 4 merely actas safety devices to keep the peripher -of the roller 5" in propercontact with the shd'e 3 during the latter part of the reversalmovement; and also to enable the bed movement to be started at any pointduring the reverse movement at which the bed might be when the machinewas stopped. Thus if the machine should be stopped during the last partof the reversing movement when roller 5 (for example) is engaged'withthelower part ,of shoe 3, the guard roller 15 and coacting guide 4 wouldprevent the bed being moved inward so as to improperly separate thesurface of the roller 5 from the shoe 3. And so if, at such time, itshould be desired to reverse the reversal movement of the bed, then suchguide roller l5 engaging the'surface 4 would move the bed outward untilthe roller. 5 again enters the slot betweenthe opposed shoes 3, 4 andtakes control of the reverse.

Both rollers 5, 15 between the lower end of the shoes 3 and curvedportion just after the segment 8 gear 10 (or 9*) so that there is noclash between the mechanisms for driving the bedon "stroke,- and the theuniform portion of. its mechanism for reversing the same at the endthereof.

The roller 5 andshoes 3 4 have the same functions and operate inlthesame man and duringner as the roller 5 and drive the bed on its slot andaccomplishes the we provide supple,.

respectively As shown the, roller 15* is This roller (or 5*, 15?).passout (or 3?) of the shoe 4 (or 4 meshes with the.

and shoes 3*, 4* above bed is being reversed at described, when the theend of its inward uniform movement or stroke, and the roller 15 the samefunctions and-operate in the same 7" and guide 4 have manner as roller15 and guide 4 above described, when the bed is being reversed at theend. of its inward uniform movement.

What we claim is:

-1. In combination with a reciprocable 71 bed; a member attached theretohaving two closely adjacent oppositely inclined faces arranged at anangle of less than ninety degrees to the plane of movement of said bed,said inclined faces converging toward center of the bed and incliningdownwardly and outwardly away from the center of the. bed; means fordriving the body uniformly during portions of its strokes; andtwosimilar alternately operatin 1n en agement therewith. I

n combination with a reciprocable bed; a reversing member-secured to thebed having two oppositely inclined faces arranged at an angle of lessthan grees to the plane, of movement of said bed,

said inclined faces converging toward the center of the bed; andinclining downwardly and outwardly away from the center of the bed;means for uniformly moving the bed during portion of its st'ro es ;.anda pair of separated but similar rotatable members carrying meansrespectively adapted to ala reversing member secured to said bed andhaving two oppositely inclined faces ar ranged at an angle "of less thanninet grees to the plane ofmovement' of sai said inclined faces centerof the-bed and inclining downwardly bed,

:and outwardly away fromthe center of the bed; and .separate rotatingmembers each" provided'with -means which engages the re lated face ofsaid member during the .re-

versing movement of the being in engagement with during the entire timethat stopped from bed, said means the related face.

going in one direction an started in the opposite direction and untilthe normal speed of the bed is reached.

4. In combination a frame provided with.

ways; a bed adapted to reciprocate on said. ways; a member dependinranged at an angleof less than ninety degrees to the plane ofmovementofsaid bed,

said inclined faces converging toward the center of the bed the 0 meanseach 35 adapted to engage the relate inclined face of said member andreverse the body while ninety de -f in combination, a reciprocable bed;105

converging toward the 110 g the bed is being" from the bed 1 having twoopposltely inc ined faces arbed; means for uniformly driving the bed onportions of its strokes; and separated rotatable gears each carrying acrank pin adapted to engage the related inclined face of'the said memberand reverse the bed.

5. In a machine of the character described, in combination, a frame; areciprocable bed an angular member connected with the bed and havingoppositely inclined faces arranged at an angle of less than ninetydegrees to the plane of movement of said bed, said inclined facesconverging toward the center of the bed and inclining downwardly andoutwardly away from the center of the bed; a fixed member opposite eachinclined face and forming therewith the walls of a reversing slot; andtwo similar means each having a part adapted to enter one of the slotsand engage the inclined face therein and stop and start the bed while inengagement therewith.-

6. In a machine of the' character described, incombination, a frame; areciprocable bed an angular member connected with the'bed and havingoppositely inclined'faces arranged at an angle of less than ninetydegrees to the plane of movement o f-said bed,

said inclined faces converging toward the center of the bed andinclining downwardly and outwardly away from the center of thebed;,afixed member opposite each inclined.

face the space between such member and opposed face forming a reversingslot;and

a pair of oppositely rotating members each provided with a crank havin apart adapted to enter one ofthe slots an engage the inclined facetherein. and stop and start the bed while in engagement with such face,substantially as described.

7. In combination with I a reciprocable body; a pair of closely adjacentshoes connected with said body and inclined at an angle of approximatelyninety degrees to each other said shoes converging toward the center ofthe bed and inclining downwardly and outwardly. away from the center ofthe bed; with means for driviii the body at uniform speed during part ofits stroke and-two rotary members at opposite sides of the uniformdriving means each provided with means respectively adapted to engageone of said shoes at the end of the related uniform movement of the bedand to slow down, stop, and reverse the movement of the bed while inengagement with said shoes.

' 8. In combination with a reciprocable member; apair of adjacent shoesconnected with said member and inclinedat an angle of approximatelyninety degrees to each other ;'a'rack on the member; a pinion meshingwith. said rack; and gearing for rotating said pinion alternately inopposite directions to drive thebed at uniform speed during part of eachstroke thereof; with two rotatable members at opposite sides of the bed"driving inion provided with means respectivelya apted to engagetherelated one of said shoes to slow down, stop, and reverse the movementof the bed at the end of its uniform movement in the directionof saidrotary member.

9. In combination with a reciprocable form speed during part of eachstroke there of; with two rotatable members at opposite sides of the beddriving pinion provided with means respectively adapted to engage' therelated one of said shoes to slow down, stop, and reverse the movementofthe bed at the end of its uniform movement in the y direction of saidrotary member.

10. -Meansforv slowing down, stopping, and reversing the movement of areciprocal body such as the bed of a printing press, comprising a longshoe attached to the body and inclined at an angle to the path ofmovement of the body; a short shoe fixedly attached to said bodyopposite the upper end of the first shoe and parallel. therewith; arotatable crank adapted to engage the. slot between. said opposed shoesto efl'ect the reversal of the movement of the said-body;

and means to prevent disengagement of the crank from the long shoe afterit has cleared the short shoe.

11. Means for slowing down, stopping, and reversing the movement of areciprocal body such as the bed of a printing press comprising a longshoe attached to the body and inclined at an angle to the path ofmovement of the body; anopposed member fixedly attached to said bodyopposite said shoe; a short shoe attached to said member opposite theupper 'end of the first shoe and parallel therewith, the said memberhaving a curved face on the side opposite the shoe; and a rotatablecrank adapted to engage the slot between said opposed shoes to effectthe reversal of the movement of the said body; and means coacting withsaid member to prevent disengagement of the crank from tlie longer shoeafter it has cleared the short s oe.

12. In a reversing mechanism for reciprocal bodies such as the bed of aprinting press; :a shoe attached to the body and inclined to the path ofmovement of the body; an opposed member attached to the bodyoppositesaid shoe and having a curved face reversal of the movement ofthe said body;

d, a guard means connecte w h said site said shoe and having site theshoe; a short shoe attached to sand path of movement of the crank meansadapted to engage the curved member fixedly attached member opposite theupper end of the first shoe and parallel therewith; rotatable crankmeans adapted to engage the slot between pair of intermeshing {0ndpinion; segments carried by said gears said opposed shoes to effect thereversal of the movement of the said body; and a guard roller connectedadapted to engage the curved face of said member to preventdisengagement of the crank pin from the longer shoe after thecrank hascleared the short shoe.

14. .In means for imparting reciprocatory movements to bodies such'asthe bed of a printing press; the combination of a reciprocable body,pinion for driving said rack; a pair of oppositely moving segments; ingsaid segments simultaneously; and means for alternately meshing saidpinion with said segments, thereby alternately driving the body inopposite directions. v v

15. In means for imparting reciprocatory movements to bodies such as thebed of a printing press; the combination of'a reciprocable body, pinionfor driving said rack; a pair of oppositely moving segments; gearing fordriving for alternately meshing said pinion with said segments, therebyalternately, driving the body in opposite directions; with means forreversing the movement ofthe'bed at each end of its uniform strokeandwhilethe substantially as described. J

16. In combination a reciprocable body such as the bed of a printingpress; a rack on said body; a pinion meshing with said beside the fi rstpinion pair of intermeshing gears adjacent the sec ond pinion; segmentscarried by said gears and means for laterally shiftin the pinions so asto causethe second pinion to alternately mesh with said segments.

17. In combination a reciprocable body' such as thebed of a printingpress; a rack on said body; a pinion meshing with said ,rack;'a secondvpinion beside the first pinionand slightly smaller than the firstpinion; a

gears adjacent the secand means for laterally shifting the pinionsmovements to bodies,

rack; a

'movements to the bed ofa PllllOIl' meshing with said with said crankmeans a rack connected therewith; a f

each gearing for dr1v-' a rack connected therewith; a.v

printing press for oscillating the yoke so so as to cause the secondpinion to alternately mesh with said segments.

18. Means for imparting reciprocatory I such as the bed of a printingpress; comprising a rack attached to the body; a pinion meshing second pnion beside sald first pinion; a yoke carrying said pinions; a pair ofintermeshing gears adjacent the pimons; a segment carried by each gear;and means for oscillating the yoke so as to move the pinions intopositions to be alternately meshed with said segments whereby the, bodyis alternately moved in opposite directions.

19. Means for imparting reciprocatory printing press; to thebody; a

comprising a rack attached rack; a second with .said' pinion beside andsmaller than said first pin ion; a yoke carrying said pinions; a pair ofintermeshing gears adjacent the pimons; a segment carried. by each gear;and means for oscillating the yokeso as to move the pinions to bealternately meshed with said segments whereby the bed is alternatelymoved in opposite-directions; with means or reversing the movement ofthe bed at end of its uniform movement and while the pinion isdisengaged from both segments, substantially asdescribed.

20. In means for'imparting reciprocatory movements to bodies, such. asthe bed of printing press; the combination of a reciprocable. body, arack connected therewith; a pinion for driving said rack; a pairofopposltely moving segments; gearing for driving said segmentssimultaneously; means for alternately meshing-said pinion-with saidsegments, thereby alternatelyf driving the said segments simultaneously;I and means b d o y in opposite directions; gears at opposite sides ofthe gears carrying said segments and having. crank pins;,and shoes iooconnected withthe reciprocable body and I inclined at an angle totheplane of-movement of the body and adapted to be engaged pinion isdisengaged from both segments, b

' y sa1d crank pins to reverse the movement of the'body during the timethat the pinion is out of mesh with both segments; e 21. Means forimparting reciprocatory movements to bodies, such asthe bed of a to thebody; a.- pinion meshing with; said rack; a second plnion beside saldfirst .pin-

clmed at aii'angleto the plane of of the'body; sides of and meshing withmg thesegments; and-crank means on said movement comprising a rackattached I and. gears arranged at opposite the gears gcai ryjff nectedwithzthe reciprocableflbody and ingears adapted to engage said shoes andreverse the movement of the body during the time that the pinion is outof mesh with both se merits;

22. 1 cans for imparting reciprocatory movements to the bed of a prmtmgpress;

comprising a rack attached to the bed; a

pinion meshing with said rack; asecond pin ion beside and smaller thansaid first pimon; a yoke carrying said pinions; a pair oi intermeshinggears adjacent the pinions; a segment carried by each'gear; and meansfor oscillating the yoke so-as to move the pinions into position to bealternately meshed with said segments to move the bed alternately inopposite directions; reversing gears arranged .at opposite sides of andmeshing with the gears carrying the segments; shoes connected with thebed and inclined at an angle of less than ninety degrees to the plane ofmovement thereof; and

crank means on said reversing gears adapted to engage said shoes andreverse the movement of the bed during the time that the pinion is outof mesh with both segments.

23. In combination with a reciprocable body, a member attached theretohaving two oppositely inclined faces convergingtoward the body andarranged at an angle of less than 90 degrees to the plane of movement ofsaid body; and means alternately cooperating with the respectiveinclined faces to slow down, stop, and start the body, .substantially asdescribed.

24. Mechanism as set forth in claim 23, having said faces inclined at anangle of 45 degrees to the line of movement of the body, substantiallyas described.-

In combination. with body, a member attached thereto having twooppositely inclined faces converging toward the body and than 90 degreesto the plane of movement a reciprocable arranged at an angle of less ofsaid body; means for imparting'uniform movements to the body in eachdirection; and means cooperating with an inclined face at each end ofthe uniform movement of the bed body to slow down, stop andstart thebody on its return movement,- substantially as described, v y 1 26.Mechanism as set forth in claim 25, having said faces inclined at anangle oil 4:5 degreesto the line of movement of the body or; surface ofthe bed,

- In testimony that we claim the foregoing J as our own, we al'iin oursignatures BURT F UPI-Haiti.

FRANK Pt. BELL'UO EE.,-

